Sprinkler



(No Model.)

F. T. PINTER. Sprinkler.

No. 233,431. Patented Oct. 19,1880.

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UNITED STATES FRANCIS T. PINTER, OF

PATENT OFFICE.

SC HULEN B URG, TEXAS.

SPRINKLER.

SPECIFICATION forming part of Letters Patent No. 233,431, dated October 19, 1880.

Application filed July 26, 1880. (No model.)

To all whom it may concern Be it known that I, FRANCIS T. Pnvrnn, of Schulenburg, in the county of Fayette and State of Texas, have invented certain new and useful Improvements in Cotton-Plant Sprinklers; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in insect-destroyers; and it consists in providing the piston with a relief-valve, so that should the nozzle become stopped up at any time this valve will open and let the fluid escape through the piston without doing any harm to the pump or stopping the vehicle.

It further consists in the peculiar construction of the nozzle through which the poisonous fluid is sprayed over the cotton-plants, as will be more fully described hereinafter.

Figure 1 is a vertical section of my pump. Figs. 2 and 3 are detail views.

A represents the body of the pump, which may be of the form here shown, or any other that may be preferred, and which is to be placed upon the rear end of a suitable vehicle in the barrel or other vessel in which the poisonous liquid is held. The piston of this pump is to be operated by any suitable arrangement of levers, which are to be operated by one or both of the driving-wheels as the vehicle is drawn along over the field. The lower end of the pump-cylinder rests upon the bottom of the barrel, and in order to prevent coarse substances from being drawn into the cylinder a screen is placed over the lower end of the cylinder, as shown.

In the bottom of the cylinder is placed the valve 0, through which the poisonous fluid is This piston D is pro vided with a barrel or cylinder, E, which extends a considerable distance above the packing, and which has the valve F placed in its bottom. Across the upper end of this cylininder is secured the cross-head G, and passing through this head is the piston-rod H, which has a screw-thread formed on its lower end,

whereby this end can be adjusted vertically. Placed inside of this cylinder E, for the purpose of holding the valve down upon its seat, is the spring H and upon the top of this spring is placed a cross-piece, I, on which the lower end of the piston-rod bears. By regulatin g the pressure of this rod upon the spring the amount of pressure necessary to open this safety-valve is readily controlled. This valve remains closed until some obstruction occurs in the operation of the pump, when the valve opens and relieves the pressure. By means of this valve lighter material may be used in making the pump, and thus its cost greatly cheapened, and all danger of breakage or stopping the machine is entirely overcome. The cylinder has the inclosing-case J around it, so as to form a chamber, L, into which the fluid is forced by the piston, and from this chamber the fluid is forced through the nozzle N. This nozzleis provided with a stop-cock, 0, by means of which the flow of fluid can be stopped at any time. This nozzle is made flat on one side and semicircular along the sidefrom which the fluid isdischarged, and placed in the mouth of the nozzle is the block R, of corresponding shape. This block is packed on one side to prevent any leakage, and is held in place by means of the set-screws T. These screws pass through slots in the side of the nozzle, whereby the block can be adjusted in or out, and thus throw a lighter or a heavier stream, as may be desired.

By means of the semicircular shape of the nozzle a broad stream can be scattered over the plants.

Like all other sprinklers of this class, the wagon is driven along between the rows of cotton-plants, and the driving-wheels operate the pump, so as to cause it to sprinkle the poisonous fluid over the plants for the purpose of killing the worms and insects that are injurious to the plants.

In case the valve in the piston should be forced open, and the cylinder be filled with the fluid, so as to overflow at its top, this surplus fluid passes through the overflow V, which is secured to one side of the pump, and is conducted back into the barrel.

As here shown, the mechanism for operating this pump consists of a crank, 1, which is secured to one of the driving-wheels, and a connecting-rod, 2, which connects this crank with the crank-shaft3 upon the top of the support 4, which is secured in or to the wagon bed or frame. This crank-shaft 3 has a gearwheel, 5, upon its inner end, and this gearwheel meshes with a pinion, (3, upon the short crankshaft 7, which has the pump-rod II connected directly to it.

Having thus described my invention, I claim- In a pump, apiston having arelief-valve, whereby the pressure in the cylinder can be regulated, substantially as shown.

2. The combination of a piston provided with a cylinder upon its top, a valve, a spring resting upon the valve, and a vertically-adjustable piston-rod, whereby the pressure of 4. The combination of the driving-wheel of 25 the vehicle, provided with a crank, 1, connecting-rod 2, crank-shaft 3, provided with a gear, 5, crank-shaft 7, provided with a pinion, 6, pump-rod H, and the supporting-frame 4, the parts being combined and arranged to operate substantially as specified.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day ot June, 1880.

FRANCIS T. PINTER.

Witnesses E. FALLENSTEIN, L. B. PLUMMER. 

